:root{
    --base-color:#ffffff;
    --primary-color:#333;
    --secondary-color:#00d9ff;
    --tertiary-color:#AFFD01;
    --quaternary-color:#EA3637;
  }
  html{
    scroll-behavior: smooth;
  }
  body{
    color: var(--primary-color);
    letter-spacing: .05em;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 700;
  }
  a{
    color: var(--primary-color);
  }
  ul{
    padding-inline-start: 1em;
  }
  li{
    margin-bottom: 0.5em;
  }
  h1,h2,h3,h4,h5,h6{
    margin-top: 0.5em;
    margin-bottom: 0.5em;
  }
  h1{
      font-size: 32px;
      font-size: clamp(32px, 5.625vw, 45px);
      min-height: 0vw;
      font-weight: 900;
  }
  h2{
      font-size: 20px;
      font-size: clamp(20px, 3vw, 24px);
      min-height: 0vw;
      font-weight: 900;
  }
  h3{
      font-size: 18px;
      font-size: clamp(16px, 2.5vw, 18px);
      min-height: 0vw;
  }
  h4{
      font-size: 16px;
      font-size: clamp(16px, 2.5vw, 20px);
      min-height: 0vw;
  }
  p{
    line-height: 1.8em;
  }
  hr{
    border: 5px solid var(--primary-color);
  }
  dt{
    font-size: 18px;
    font-size: clamp(16px, 2.5vw, 18px);
    min-height: 0vw;
    margin-bottom: 0.5em;
  }
  dd{
    margin-bottom: 1.5em;
  }
  .container{
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    padding: 3vh 20px;
  }
  .container-full{
    width: 100%;
    margin: 0 auto;
    padding: 3vh 5vw;
  }
  summary {
    display: block;
    list-style: none;
  }
  
  summary::-webkit-details-marker {
    display:none;
  }
  .border{
    border:5px solid black;
    padding: 10px;
    margin: 0 auto 30px;
    max-width: 100%;
    border-radius: 20px;
}
.gradient{
  display: flex;
  align-items: center;
  justify-content: center;
}
.gradient .title{
  animation: AnimationTitle 5s ease infinite;
  background-image: linear-gradient(90deg, rgba(247, 93, 139, 1), rgba(254, 220, 64, 1));
  background-size: 200% 100%;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  line-height: 1;
}
@keyframes AnimationTitle {
  0%{background-position:0% 50%}
  50%{background-position:100% 50%}
  100%{background-position:0% 50%}
}